<!DOCTYPE html>  
<html>  
<head>  
    <style>  
    #chief{  
        width: 1000px;  
        height: 200px;  
        margin: 0 auto;  
        background-color: pink;  
    }  
    </style>  
</head>  
<body>  
    <div id="chief"></div>  
</body>  
</html>